RT6246B - Synchronous Step-Down Converter

Description

The RT6246B is a simple, easy-to-use, 6A synchronous step-down DC-DC converter with an input supply voltage range of 4.5V to 18V.

The device build-in an accurate 0.6V reference voltage and integrates low RDS(ON) power MOSFETs to achieve high efficiency in a UQFN-12HL 3x3 package.

Features

cycle-by-cycle current limit protection and prevent the device from the catastrophic damage in output short circuit, over current or inductor saturation. A built-in soft-start function prevents inrush current during start-up. The device also includes input under-voltage lockout, output undervoltage protection, over-voltage protection, and overtemperature protection (thermal shutdown) to provide safe and smooth operation in all operating conditions. The RT6246B is offered in a UQFN-12HL 3x3 (FC).

Richtek

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Datasheet Details

Part number	RT6246B
Manufacturer	Richtek
File Size	276.41 KB
Description	Synchronous Step-Down Converter
Datasheet	RT6246B Datasheet
Additional preview pages of the RT6246B datasheet.

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Full PDF Text Transcription

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® RT6246B 18V, 6A, 500kHz ACOT® Synchronous Step-Down Converter General Description The RT6246B is a simple, easy-to-use, 6A synchronous step-down DC-DC converter with an input supply voltage range of 4.5V to 18V. The device build-in an accurate 0.6V reference voltage and integrates low RDS(ON) power MOSFETs to achieve high efficiency in a UQFN-12HL 3x3 package. The RT6246B adopts Advanced Constant OnTime (ACOT®) control architecture to provide an ultrafast transient response with few external components and to operate in nearly constant switching frequency over the line, load, and output voltage range. The RT6246B operates in Forced PWM that helps meet tight voltage regulation accuracy requirements. The RT6246B senses both FETs current for a robust over-current protection.

Published: Dec 10, 2023 |